Multifunctional Passive Air Bag Knapsack

ABSTRACT

A knapsack includes a main body, a strap, and a pull ring. The main body has a receiving space which has a mounting portion which is connected with an air inflation bottle which has an output terminal which has a pin. The strap has is connected with the main body and has a safety air bag which is connected to the output terminal of the air inflation bottle. The pull ring is extended into the strap and is connected with the pin. Thus, when the safety air bag is triggered, the safety air bag is expanded to surround the user&#39;s body, so that the knapsack can buffer the shock and protect the user&#39;s body.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a personal article and, moreparticularly, to a knapsack that is carried on a user's back andshoulder and is available for a bicycle, motorcycle, ski, boat,watercraft and the like.

2. Description of the Related Art

A conventional knapsack comprises a main body and a strap connected withthe main body. The main body has a receiving space and many pockets toreceive some items, such as clothes, foods, medicines and the like.Thus, a user can carry the knapsack to receive and bear his personalitems that are necessary for a determined purpose, such as travel,transportation, makeup, sports, mediation or the like. However, theconventional knapsack does not a guard or safety function and cannotprotect the user's body at an emergency condition, thereby limiting theversatility of the conventional knapsack. Thus, when the user falls outof a bicycle during riding or when the user is submerged in the water,the conventional knapsack cannot provide any buffering or lifesavingfunction during emergency.

BRIEF SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a knapsack,comprising a main body, a strap connected with the main body, and a pullring located outside of the strap. The main body has an interiorprovided with a receiving space. The receiving space of the main bodyhas a periphery provided with a mounting portion. The mounting portionof the main body is connected with an air inflation bottle. The airinflation bottle is provided with an output terminal. The outputterminal of the air inflation bottle has an upper end provided with apin. The strap has two opposite ends each connected with upper and lowerends of the main body. The strap has an interior provided with a safetyair bag. The safety air bag of the strap is connected to the outputterminal of the air inflation bottle. The pull ring has one end extendedinto the strap and connected with the pin of the air inflation bottle.

Preferably, the safety air bag of the strap includes a neck protectionportion which is expanded in a straight direction.

Preferably, the safety air bag of the strap includes a waist protectionportion which is expanded in a transverse direction.

Preferably, the safety air bag of the strap has a bright color toprovide a warning function.

Preferably, the knapsack further comprises a water container locatedoutside of the main body, and a drinking straw located outside of themain body and connected with the water container.

Preferably, the knapsack further comprises a drawing line having a firstend connected with the pull ring to drive the pull ring and a second endconnected with a seat tube of a bicycle.

Preferably, the knapsack further comprises a drive member connected withthe pull ring to drive the pull ring.

The primary objective of the present invention is to provide amultifunctional passive air bag knapsack.

According to the primary advantage of the present invention, when thesafety air bag is triggered and opened, the neck protection portion ofthe safety air bag is expanded in a straight direction to protect theuser's neck and chest, and the waist protection portion of the safetyair bag is expanded in a transverse direction to protect the user'sback, spine and waist, so that the knapsack can buffer the shock andprotect the user's body to prevent the user from being injured due to astrong or violent hit.

According to another advantage of the present invention, the watercontainer supplies drinking water to the user through the drinking strawso as to prevent the user from suffering sunstroke due to a large lossof water.

According to a further advantage of the present invention, the safetyair bag of the strap is inflated instantaneously to float on the waterso that the knapsack functions as a lifesaving suit or life buoy so asto protect the user and to prevent the user from being drowned.

According to a further advantage of the present invention, when the userfalls out of the bicycle during riding, the pull ring is pulled by thedrawing line to open the safety air bag, so that the safety air bag isinflated and expanded instantaneously so as to protect the user's bodyefficiently.

Further benefits and advantages of the present invention will becomeapparent after a careful reading of the detailed description withappropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

FIG. 1 is a perspective view of a knapsack in accordance with thepreferred embodiment of the present invention.

FIG. 2 is a schematic operational view of the knapsack for a user asshown in FIG. 1 in use.

FIG. 3 is a schematic operational view of the knapsack as shown in FIG.1 in use.

FIG. 4 is a schematic operational view of the knapsack as shown in FIG.2 in use.

FIG. 5 is a perspective view of a knapsack in accordance with anotherpreferred embodiment of the present invention.

FIG. 6 is a side view of a knapsack in accordance with another preferredembodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-4, a knapsack inaccordance with the preferred embodiment of the present inventioncomprises a main body 1, a strap 2 connected with the main body 1, and apull ring 3 located outside of the strap 2. The knapsack furthercomprises a drive member 6 connected with the pull ring 3 to drive thepull ring 3.

The main body 1 has an interior provided with a receiving space 10. Thereceiving space 10 of the main body 1 has a periphery provided with amounting portion 11. The mounting portion 11 of the main body 1 isconnected with an air inflation bottle 12. The air inflation bottle 12is provided with an output terminal 120. The output terminal 120 of theair inflation bottle 12 has an upper end provided with a pin 1200.

The strap 2 has two opposite ends each connected with upper and lowerends of the main body 1. The strap 2 has an interior provided with asafety air bag 20. The safety air bag 20 of the strap 2 is connected tothe output terminal 120 of the air inflation bottle 12. Preferably, thesafety air bag 20 of the strap 2 has a bright color to provide a warningfunction.

The pull ring 3 has one end extended into the strap 2 and connected withthe pin 1200 of the air inflation bottle 12. The pin 1200 is locatedbetween the output terminal 120 of the air inflation bottle 12 and thesafety air bag 20 of the strap 2 to interrupt a connected between theoutput terminal 120 of the air inflation bottle 12 and the safety airbag 20 of the strap 2.

In operation, referring to FIGS. 3 and 4 with reference to FIGS. 1 and2, when the drive member 6 is pulled by a user at an emergencycondition, the pull ring 3 is drawn to drive the pin 1200 of the airinflation bottle 12 so that the pin 1200 of the air inflation bottle 12is detached from the output terminal 120 of the air inflation bottle 12.After the pin 1200 of the air inflation bottle 12 is removed from theoutput terminal 120 of the air inflation bottle 12, the output terminal120 of the air inflation bottle 12 is connected to the safety air bag20, so that the air in the air inflation bottle 12 is delivered throughthe output terminal 120 of the air inflation bottle 12 into the safetyair bag 20 of the strap 2 to inflate and expand the safety air bag 20 ofthe strap 2 instantaneously so as to protect the user's body.

As shown in FIGS. 3 and 4, the safety air bag 20 of the strap 2 includesa neck protection portion 200 and a waist protection portion 201. Theneck protection portion 200 of the safety air bag 20 is expanded in astraight direction to protect the user's neck and chest. The waistprotection portion 201 of the safety air bag 20 is expanded in atransverse direction to protect the user's back, spine and waist. Inaddition, the safety air bag 20 of the strap 2 floats on the water sothat the knapsack functions as a lifesaving suit or life buoy to protectthe user when the user is drowning.

Referring to FIG. 5, the knapsack further comprises a water container 4located outside of the main body 1, and a drinking straw 40 locatedoutside of the main body 1 and connected with the water container 4.Thus, the water container 4 supplies drinking water to the user throughthe drinking straw 40.

Referring to FIG. 6, the knapsack further comprises a drawing line 5having a first end connected with the pull ring 3 to drive the pull ring3 and a second end connected with a seat tube 7 of a bicycle. In such amanner, when the user falls out of the bicycle unintentionally, the pullring 3 is pulled by the drawing line 5 to open the safety air bag 20, sothat the safety air bag 20 is inflated and expanded instantaneously soas to protect the user's body.

Accordingly, when the safety air bag 20 is triggered and opened, theneck protection portion 200 of the safety air bag 20 is expanded in astraight direction to protect the user's neck and chest, and the waistprotection portion 201 of the safety air bag 20 is expanded in atransverse direction to protect the user's back, spine and waist, sothat the knapsack can buffer the shock and protect the user's body toprevent the user from being injured due to a strong or violent hit. Inaddition, the water container 4 supplies drinking water to the userthrough the drinking straw 40 so as to prevent the user from sufferingsunstroke due to a large loss of water. Further, the safety air bag 20of the strap 2 is inflated instantaneously to float on the water so thatthe knapsack functions as a lifesaving suit or life buoy so as toprotect the user and to prevent the user from being drowned. Further,when the user falls out of the bicycle during riding, the pull ring 3 ispulled by the drawing line 5 to open the safety air bag 20, so that thesafety air bag 20 is inflated and expanded instantaneously so as toprotect the user's body efficiently.

Although the invention has been explained in relation to its preferredembodiment(s) as mentioned above, it is to be understood that many otherpossible modifications and variations can be made without departing fromthe scope of the present invention. It is, therefore, contemplated thatthe appended claim or claims will cover such modifications andvariations that fall within the true scope of the invention.

1. A knapsack, comprising: a main body; a strap connected with the mainbody; and a pull ring located outside of the strap; wherein: the mainbody has an interior provided with a receiving space; the receivingspace of the main body has a periphery provided with a mounting portion;the mounting portion of the main body is received and hidden in thereceiving space of the main body; the mounting portion of the main bodyis connected with an air inflation bottle; the air inflation bottle isreceived and hidden in the receiving space of the main body; the airinflation bottle is provided with an output terminal; the outputterminal of the air inflation bottle has an upper end provided with apin; the strap has two opposite ends each connected with upper and lowerends of the main body; the strap has an interior provided with a safetyair bag; the safety air bag is received and hidden in the strap; thesafety air bag of the strap is connected to the output terminal of theair inflation bottle; and the pull ring has one end extended into thestrap and connected with the pin of the air inflation bottle.
 2. Theknapsack of claim 1, wherein the safety air bag of the strap includes aneck protection portion which is expanded in a straight direction topush the strap outward.
 3. The knapsack of claim 2, wherein the safetyair bag of the strap includes a waist protection portion which isexpanded in a transverse direction to push the strap outward.
 4. Theknapsack of claim 1, wherein the safety air bag of the strap has abright color to provide a warning function.
 5. The knapsack of claim 1,further comprising: a water container located outside of the main bodyand covered by the strap; and a drinking straw located outside of themain body and connected with the water container.
 6. The knapsack ofclaim 1, further comprising: a drawing line having a first end connectedwith the pull ring to drive the pull ring and a second end connectedwith a seat tube of a bicycle.
 7. The knapsack of claim 1, furthercomprising: a drive member connected with the pull ring to drive thepull ring.
 8. The knapsack of claim 1, wherein the pin of the airinflation bottle is removable outward and detachable from the airinflation bottle.
 9. The knapsack of claim 3, wherein the neckprotection portion and the waist protection portion of the safety airbag are connected with each other.